Toyota's head of motorsport activities, who has been at the company since 1977. He was involved in F1, but now is in charge of the company's motorsport challenges across the World. Yamashina has held numerous roles at Toyota, including as general manager of vehicle evaluation and engineering, a five year spell in charge of the technical division of Toyota's US programme and then a spell in the research and development part of the company. Tadashi also goes by the name of George and is still involved in both the US and German sides of the company's operations.